Learning German...

Where can I get free resources for learning German?
Particularly for pronunciation.

I'm failing so hard at that..

Also, whats the best way to learn? Flashcards? Music? I'm obviously not looking for anything that costs money like classes.

Audio books are great for learning, especially if you look at the text for reference. http://vorleser.net/ offers quite a few free ones, spoken by professional voice actors. They've got children's books too: http://vorleser.net/html/kinder-hoerbuecher.html
Texts of most of the public domain stuff can be found at either Project Gutenberg, Wikisource or via google on various university sites.